Radiator



C. H. SHAPIRO RADIATOR Filed April '7, 1923 ATTOR N EY Patented Dec. 16, 1924.

UNITED STATES CHARLES H. SHAPIRO,

OF CHICAGO, ILLINOIS.

RADIATOR.

Application filed April 7,

To all 'MibO'i/I it may concern:

lie it known that I CHARLES H. Si arino, a citizen of the Republic of Lithuania, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Radiators, of which the "following is a specification.

This invention relates to radiators particularly designed for use on motor vehicles, and an object of the invention is to provide a radiator structure which will embody maximum cooling eiiiciency and one which is designed. to permit the construction of a relatively thin radiator core, which although substantially only one-half the thickness of approved types of cores now on the market, will provide sufficient cooling properties to effectively cool the cooling fluid used in connection with the power plant of a motor vehicle.

Another object of this invention is to provide a radiator structure in which the spacing fins comprise a plurality of connected individual spirals each twisted to provide a complete revolution throughout their length, for guiding the air passing through the radi ator in a spiral. path thereby increasing the cooling efifect of the air upon the water tubes and upon the tins themselves, consequently increasing the cooling efiiciency of the radiator and also to provide, in the radiator structure a plurality of spirals arranged in (in units. The ends of each spiral both extend vertically to provide proper spacing relation of the tubes at both the front and back of the radiator core, and also to facilitate the assembling of the core as well as the construction of the spirals.

()ther objects of the invention will appear in the following detailed description taken in connect-ion with the accompanying drawing wherein Fig. 1 is a fragmentary front elevation of a radiator core constructed in accordance with this invention.

Fig. 2 is a fragmentary vertical section through the core illustrating one of the spirals in side elevation.

Fig. 3 is a fragmentary horizontal section illustrating a fragment of one of the tin units and showing the manner of assembly and construction of the spirals.

Fig. 4 is an enlarged view showing the spirals in end elevation.

Referring more particularly to the drawings, the improved radiator comprises a plu- 1923. Serial No. 630,53

rality of tubes 1 through which the cooling liquid of the cooling system passes and these tubes have their edges bent together as shown at 2, as is usual in the construction oli radiator cores. The tubes 1 are held in spaced relation by means of fins 3.

In the present construction the ins 3 are made up oi a plurality of individual spirals 4: which are connected one to the one next thereto at the edges 01'? the maximum horizontal widths oi the spirals as shown at 5 in Fig. 3 oi the drawings. Each of the spirals i is twisted in such manner as to provide a complete turn or circle in their twist. throughout their length as shown in 4 of he drawings. The complete turn or circle in the twist of the spirals 4 positions the fiat ends 6 of the spirals vertically, as clearly shown in Figs. 2 and 3 of the drawings providing an equal width at both the trout and rear faces of theradiator core and permitting even supporting and spacing relation between the fins 3 and tubes 1.

By comparison oi Figs. 2 and 3 it will be noted that the spirals l are twisted to cause air passing through the radiator to travel in a spiral path which naturally retards the passage of? air with respect to its travel in a straight path through open tubes and conserpientiy increases the cooling efficiency ol the radiator core and permits the core to he made much narrower than in the approved type of. radiator core in which the air passes in a straight path and still provide suliicient cooling to properly cool the fluid passing through the tubes 1. To further retard the passage of air and increase the cooling etficiency of the radiator core, air retarding buttons 7 are struck from the spirals 4 at the centers of the maximum horizontal widths of the spirals and they are bent transversely so as to provide ahutments against which the air strikes.

By providing a complete turn to the spirals and connecting them as previousl specified. they may he formed or constructed by a punch press operation, through the medium of dies properly shaped to give the necessary turns to the respective parts of the tins thereby materially reducing the cost of" mami'facture of the radiator core over that type of core wherein the fins are manually or individually twisted and through only apart of a circle through their length.

It is, of course, to be understood that the invention may be constructed in other man- 11ers and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in the claim hereunto appended.

Having thus described my invention What I claim is:

A fluid cooling radiator comprising in combination With a pluralityof tubes, and

spacing fins spirally twisted, throughout their lengths buttons struck from the spi- 10 rats at the centers of the maximum vertical Widths of the spirals and bent transversely to form abutments.

In testimony whereof I affix my signature.

CHARLES H. SHAPIRO. 

